Income Taxes (Summary Of Deferred Taxes) (Details) - USD ($) $ in Thousands	Nov. 30, 2016	Nov. 30, 2015
Deferred tax assets:
Accounts receivable	$ 360	$ 628
Other assets	77	761
Accrued compensation	3,267	3,421
Accrued liabilities and other	3,207	4,945
Stock-based compensation	4,377	4,902
Deferred revenue	1,325	798
Tax credit and loss carryforwards	23,167	29,351
Gross deferred tax assets	35,780	44,806
Valuation allowance	(3,189)	(8,160)
Total deferred tax assets	32,591	36,646
Deferred tax liabilities:
Goodwill	(23,685)	(21,580)
Deferred revenue	0	0
Depreciation and amortization	(6,206)	(11,207)
Total deferred tax liabilities	(29,891)	(32,787)
Total	$ 2,700	$ 3,859